Home / 65,860.41-90,825.68-43,720.06

Finding the Fourth Proportional to 65,860.41, 90,825.68 and 43,720.06

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Solution

The fourth proportional to 65,860.41, 90,825.68 and 43,720.06 is: 60,292.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,860.41 : 90,825.68 = 43,720.06 : x
  2. Step 2: Convert to fraction form
    65,860.41/90,825.68 = 43,720.06/x
  3. Step 3: Cross multiply
    65,860.41x = 90,825.68 × 43,720.06
  4. Step 4: Simplify right side
    65,860.41x = 3,970,904,023.53
  5. Step 5: Solve for x
    x = 3,970,904,023.53/65,860.41
  6. Step 6: Final answer
    x = 60,292.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.